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Reprocessing technology of blast furnace slag

Industrial Waste Residue Treatment Solutions

 

Slag powder is a byproduct of steel production that can be used as a cementitious material in concrete and other construction materials. The preparation of slag powder typically involves the following steps:

 

Slag production: Steel mills produce slag as a byproduct of the steelmaking process. The slag is typically granulated or quenched with water to rapidly cool and solidify it.

 

Grinding: The solidified slag is then ground into a fine powder using specialized equipment such as ball mills, vertical roller mills, or high-pressure grinding mills. The goal is to achieve a specific particle size distribution and surface area to optimize the reactivity of the slag powder.

 

Storage: The ground slag powder is stored in silos or other storage facilities to prevent moisture absorption and ensure consistent quality.

 

Transport: The slag powder is transported to the construction site or cement plant where it will be used in concrete or other applications.

 

The preparation of slag powder requires specialized equipment and expertise to ensure the quality and consistency of the final product. The grinding process can be energy-intensive, but the use of slag powder as a cementitious material can help reduce the environmental impact of concrete production by reducing the amount of Portland cement needed.

 

Slag, also known as granulated blast furnace slag, is a by-product of blast furnace ironmaking, with high potential activity and hydraulic hardness

Main usage:

1. In cement production, it is directly mixed into cement in a certain proportion. It is a component material for the production of slag Portland cement to improve the performance of cement and reduce production costs and energy consumption. The addition of water slag in slag Portland cement The amount is 20%-70% by weight.

 

2. In ready-mixed concrete and cement products, it can be used to replace part of the cement in an equal amount or in excess. It can be used as a cementitious material to directly mix concrete and mortar to improve its working performance. Slag micropowder appears in the construction market as a vertical product and is widely used in concrete. , can replace about 50% cement.